2012-05-09 05:58:43 +04:00
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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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2014-03-07 05:51:35 +04:00
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* Copyright (C) Jay Sorg 2012-2014
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2014-02-08 15:34:01 +04:00
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* Copyright (C) Idan Freiberg 2013-2014
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2012-05-09 05:58:43 +04:00
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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2017-03-03 07:33:23 +03:00
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#if defined(HAVE_CONFIG_H)
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#include <config_ac.h>
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#endif
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2012-05-09 05:58:43 +04:00
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#include "libxrdp.h"
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2019-12-19 12:55:38 +03:00
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#include "ms-rdpbcgr.h"
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2012-05-09 05:58:43 +04:00
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/*****************************************************************************/
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2017-03-12 19:35:00 +03:00
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struct xrdp_fastpath *
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2014-02-09 03:42:04 +04:00
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xrdp_fastpath_create(struct xrdp_sec *owner, struct trans *trans)
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2012-05-09 05:58:43 +04:00
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{
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2012-09-20 07:51:34 +04:00
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struct xrdp_fastpath *self;
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self = (struct xrdp_fastpath *)g_malloc(sizeof(struct xrdp_fastpath), 1);
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2014-02-09 03:42:04 +04:00
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self->sec_layer = owner;
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2014-03-02 03:39:34 +04:00
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self->trans = trans;
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2014-03-05 01:56:26 +04:00
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self->session = owner->rdp_layer->session;
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2021-02-04 13:11:54 +03:00
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2012-09-20 07:51:34 +04:00
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return self;
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2012-05-09 05:58:43 +04:00
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}
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/*****************************************************************************/
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2017-03-12 19:35:00 +03:00
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void
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2012-09-20 07:51:34 +04:00
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xrdp_fastpath_delete(struct xrdp_fastpath *self)
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2012-05-09 05:58:43 +04:00
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{
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2012-09-20 07:51:34 +04:00
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if (self == 0)
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{
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return;
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}
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g_free(self);
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2012-05-09 05:58:43 +04:00
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}
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2014-02-09 03:42:04 +04:00
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/*****************************************************************************/
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2017-03-12 19:35:00 +03:00
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int
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2014-02-09 03:42:04 +04:00
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xrdp_fastpath_recv(struct xrdp_fastpath *self, struct stream *s)
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{
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int fp_hdr;
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2021-02-04 13:11:54 +03:00
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int len = 0;
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2014-02-09 03:42:04 +04:00
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int byte;
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2014-03-07 05:51:35 +04:00
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char *holdp;
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2014-02-09 03:42:04 +04:00
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2021-02-04 13:11:54 +03:00
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2014-03-07 05:51:35 +04:00
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holdp = s->p;
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2021-02-04 13:11:54 +03:00
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if (!s_check_rem_and_log(s, 2, "Parsing [MS-RDPBCGR] TS_FP_INPUT_PDU"))
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2014-03-05 08:06:50 +04:00
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{
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return 1;
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}
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2014-02-09 03:42:04 +04:00
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in_uint8(s, fp_hdr); /* fpInputHeader (1 byte) */
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2014-03-05 08:06:50 +04:00
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in_uint8(s, byte); /* length 1 (1 byte) */
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2014-02-09 03:42:04 +04:00
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self->numEvents = (fp_hdr & 0x3C) >> 2;
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self->secFlags = (fp_hdr & 0xC0) >> 6;
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2012-05-09 05:58:43 +04:00
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2014-02-09 03:42:04 +04:00
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if (byte & 0x80)
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{
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2014-03-07 05:51:35 +04:00
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byte &= ~(0x80);
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len = (byte << 8);
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2014-03-05 08:06:50 +04:00
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2021-02-04 13:11:54 +03:00
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if (!s_check_rem_and_log(s, 1, "Parsing [MS-RDPBCGR] TS_FP_INPUT_PDU length2"))
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2014-03-07 05:51:35 +04:00
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{
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return 1;
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}
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in_uint8(s, byte); /* length 2 (1 byte) */
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2014-03-05 08:06:50 +04:00
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2014-03-07 05:51:35 +04:00
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len += byte;
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2014-02-09 03:42:04 +04:00
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}
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2014-03-05 08:06:50 +04:00
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else
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{
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2014-03-07 05:51:35 +04:00
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len = byte;
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2014-03-05 08:06:50 +04:00
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}
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2014-03-07 05:51:35 +04:00
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s->next_packet = holdp + len;
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2021-02-04 13:11:54 +03:00
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LOG_DEVEL(LOG_LEVEL_TRACE, "Received header [MS-RDPBCGR] TS_FP_INPUT_PDU "
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"fpInputHeader.action (ignored), fpInputHeader.numEvents %d, "
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"fpInputHeader.flags 0x%1.1x, length %d",
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self->numEvents, self->secFlags, len);
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2014-02-09 03:42:04 +04:00
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return 0;
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}
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2014-03-07 05:51:35 +04:00
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2014-02-09 03:42:04 +04:00
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/*****************************************************************************/
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2016-02-14 07:41:07 +03:00
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/* no fragmentation */
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2017-03-12 19:35:00 +03:00
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int
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2014-03-08 00:45:33 +04:00
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xrdp_fastpath_init(struct xrdp_fastpath *self, struct stream *s)
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2012-05-09 05:58:43 +04:00
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{
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2014-03-11 09:54:28 +04:00
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int bytes;
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bytes = self->session->client_info->max_fastpath_frag_bytes;
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if (bytes < 32 * 1024)
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{
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bytes = 32 * 1024;
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}
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init_stream(s, bytes);
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2012-09-20 07:51:34 +04:00
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return 0;
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2012-05-09 05:58:43 +04:00
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}
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2014-12-19 06:40:26 +03:00
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/*****************************************************************************/
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2017-03-12 19:35:00 +03:00
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static int
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2014-12-19 06:40:26 +03:00
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xrdp_fastpath_session_callback(struct xrdp_fastpath *self, int msg,
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long param1, long param2,
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long param3, long param4)
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{
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if (self->session->callback != 0)
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{
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/* msg_type can be
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RDP_INPUT_SYNCHRONIZE - 0
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RDP_INPUT_SCANCODE - 4
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RDP_INPUT_MOUSE - 0x8001
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RDP_INPUT_MOUSEX - 0x8002 */
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/* call to xrdp_wm.c : callback */
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self->session->callback(self->session->id, msg,
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param1, param2, param3, param4);
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}
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2021-02-04 13:11:54 +03:00
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else
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{
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LOG_DEVEL(LOG_LEVEL_WARNING, "Bug: session is NULL");
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}
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2014-12-19 06:40:26 +03:00
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return 0;
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}
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2015-03-29 04:34:25 +03:00
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/*****************************************************************************/
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2016-02-14 07:41:07 +03:00
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/* no fragmentation */
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2017-03-12 19:35:00 +03:00
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int
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2015-03-29 04:34:25 +03:00
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xrdp_fastpath_send(struct xrdp_fastpath *self, struct stream *s)
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{
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2015-07-06 09:14:46 +03:00
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if (trans_write_copy_s(self->trans, s) != 0)
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2015-03-29 04:34:25 +03:00
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{
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return 1;
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}
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2020-05-29 15:28:04 +03:00
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if (self->session->check_for_app_input)
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{
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xrdp_fastpath_session_callback(self, 0x5556, 0, 0, 0, 0);
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}
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2015-03-29 04:34:25 +03:00
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return 0;
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}
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2024-06-19 19:20:25 +03:00
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/*****************************************************************************/
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/**
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* Converts the fastpath keyboard event flags to slowpath event flags
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* @param Faspath flags
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* @return slowpath flags
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*
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* See [MMS-RDPBCGR] 2.2.8.1.1.3.1.1.1 and 2.2.8.1.2.2.1
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*/
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static int
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get_slowpath_keyboard_event_flags(int fp_flags)
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{
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int flags = 0;
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if (fp_flags & FASTPATH_INPUT_KBDFLAGS_RELEASE)
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{
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// Assume the key was down prior to this event - the fastpath
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// message doesn't have a separate flag which maps to
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// KBDFLAGS_DOWN
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flags |= KBDFLAGS_DOWN | KBDFLAGS_RELEASE;
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}
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if (fp_flags & FASTPATH_INPUT_KBDFLAGS_EXTENDED)
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{
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flags |= KBDFLAGS_EXTENDED;
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}
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if (fp_flags & FASTPATH_INPUT_KBDFLAGS_EXTENDED1)
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{
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flags |= KBDFLAGS_EXTENDED1;
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}
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return flags;
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}
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2014-03-05 01:56:26 +04:00
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/*****************************************************************************/
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/* FASTPATH_INPUT_EVENT_SCANCODE */
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2017-03-12 19:35:00 +03:00
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static int
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2014-03-09 23:11:36 +04:00
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xrdp_fastpath_process_EVENT_SCANCODE(struct xrdp_fastpath *self,
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int eventFlags, struct stream *s)
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2014-03-05 01:56:26 +04:00
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{
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2014-03-07 05:51:35 +04:00
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int flags;
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int code;
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2014-03-05 01:56:26 +04:00
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2021-02-04 13:11:54 +03:00
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if (!s_check_rem_and_log(s, 1, "Parsing [MS-RDPBCGR] TS_FP_KEYBOARD_EVENT"))
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2014-03-07 05:51:35 +04:00
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{
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return 1;
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}
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in_uint8(s, code); /* keyCode (1 byte) */
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2021-02-04 13:11:54 +03:00
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LOG_DEVEL(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_FP_KEYBOARD_EVENT "
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"eventHeader.eventFlags 0x%2.2x, eventHeader.eventCode (ignored), "
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"keyCode %d", eventFlags, code);
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2014-03-05 01:56:26 +04:00
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2024-06-19 19:20:25 +03:00
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flags = get_slowpath_keyboard_event_flags(eventFlags);
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2024-06-12 18:20:12 +03:00
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2014-12-19 06:40:26 +03:00
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xrdp_fastpath_session_callback(self, RDP_INPUT_SCANCODE,
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code, 0, flags, 0);
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2014-03-07 05:51:35 +04:00
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return 0;
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2014-03-05 01:56:26 +04:00
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}
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2014-03-07 05:51:35 +04:00
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2014-03-05 01:56:26 +04:00
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/*****************************************************************************/
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/* FASTPATH_INPUT_EVENT_MOUSE */
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2017-03-12 19:35:00 +03:00
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static int
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2014-12-19 06:40:26 +03:00
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xrdp_fastpath_process_EVENT_MOUSE(struct xrdp_fastpath *self,
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int eventFlags, struct stream *s)
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2014-03-05 01:56:26 +04:00
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{
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2014-03-07 05:51:35 +04:00
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int pointerFlags;
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int xPos;
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int yPos;
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2014-03-05 01:56:26 +04:00
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2014-03-10 04:52:08 +04:00
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/* eventFlags MUST be zeroed out */
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2014-03-12 08:43:54 +04:00
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if (eventFlags != 0)
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{
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return 1;
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2014-03-10 04:52:08 +04:00
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}
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2021-02-04 13:11:54 +03:00
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if (!s_check_rem_and_log(s, 2 + 2 + 2, "Parsing [MS-RDPBCGR] TS_FP_POINTER_EVENT"))
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2014-03-07 05:51:35 +04:00
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{
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return 1;
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}
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in_uint16_le(s, pointerFlags); /* pointerFlags (2 bytes) */
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in_uint16_le(s, xPos); /* xPos (2 bytes) */
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in_uint16_le(s, yPos); /* yPos (2 bytes) */
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2021-02-04 13:11:54 +03:00
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LOG_DEVEL(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_FP_POINTER_EVENT "
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"eventHeader.eventFlags 0x00, eventHeader.eventCode (ignored), "
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"pointerFlags 0x%4.4x, xPos %d, yPos %d", pointerFlags, xPos, yPos);
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2014-03-05 01:56:26 +04:00
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2014-12-19 06:40:26 +03:00
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xrdp_fastpath_session_callback(self, RDP_INPUT_MOUSE,
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xPos, yPos, pointerFlags, 0);
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2014-03-07 05:51:35 +04:00
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return 0;
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2014-03-05 01:56:26 +04:00
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}
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2014-03-07 05:51:35 +04:00
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2014-03-05 01:56:26 +04:00
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/*****************************************************************************/
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/* FASTPATH_INPUT_EVENT_MOUSEX */
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2017-03-12 19:35:00 +03:00
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static int
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2014-03-07 05:51:35 +04:00
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xrdp_fastpath_process_EVENT_MOUSEX(struct xrdp_fastpath *self,
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int eventFlags, struct stream *s)
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2014-03-05 01:56:26 +04:00
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{
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2014-03-07 05:51:35 +04:00
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int pointerFlags;
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int xPos;
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int yPos;
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2014-03-05 01:56:26 +04:00
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2014-03-10 04:52:08 +04:00
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/* eventFlags MUST be zeroed out */
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2014-03-12 08:43:54 +04:00
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if (eventFlags != 0)
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{
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return 1;
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2014-03-10 04:52:08 +04:00
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}
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2021-02-04 13:11:54 +03:00
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if (!s_check_rem_and_log(s, 2 + 2 + 2,
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"Parsing [MS-RDPBCGR] TS_FP_POINTERX_EVENT"))
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2014-03-07 05:51:35 +04:00
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{
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return 1;
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}
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in_uint16_le(s, pointerFlags); /* pointerFlags (2 bytes) */
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in_uint16_le(s, xPos); /* xPos (2 bytes) */
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in_uint16_le(s, yPos); /* yPos (2 bytes) */
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2021-02-04 13:11:54 +03:00
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LOG_DEVEL(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_FP_POINTERX_EVENT "
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"eventHeader.eventFlags 0x%2.2x, eventHeader.eventCode (ignored), "
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"pointerFlags 0x%4.4x, xPos %d, yPos %d",
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eventFlags, pointerFlags, xPos, yPos);
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2014-03-05 01:56:26 +04:00
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2014-12-19 06:40:26 +03:00
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xrdp_fastpath_session_callback(self, RDP_INPUT_MOUSEX,
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xPos, yPos, pointerFlags, 0);
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2014-03-07 05:51:35 +04:00
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return 0;
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2014-03-05 01:56:26 +04:00
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}
|
2014-03-07 05:51:35 +04:00
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2014-03-05 01:56:26 +04:00
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/*****************************************************************************/
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/* FASTPATH_INPUT_EVENT_SYNC */
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2017-03-12 19:35:00 +03:00
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static int
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2014-12-19 06:40:26 +03:00
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xrdp_fastpath_process_EVENT_SYNC(struct xrdp_fastpath *self,
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2014-03-09 23:11:36 +04:00
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|
|
int eventFlags, struct stream *s)
|
2014-03-05 01:56:26 +04:00
|
|
|
{
|
2020-11-30 06:29:57 +03:00
|
|
|
/*
|
|
|
|
* The eventCode bitfield (3 bits in size) MUST be set to
|
|
|
|
* FASTPATH_INPUT_EVENT_SYNC (3).
|
|
|
|
* The eventFlags bitfield (5 bits in size) contains flags
|
|
|
|
* indicating the "on"
|
|
|
|
* status of the keyboard toggle keys.
|
|
|
|
*/
|
2014-12-19 06:40:26 +03:00
|
|
|
|
2021-02-04 13:11:54 +03:00
|
|
|
LOG_DEVEL(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_FP_SYNC_EVENT"
|
|
|
|
"eventHeader.eventFlags 0x%2.2x, eventHeader.eventCode (ignored), ",
|
|
|
|
eventFlags);
|
|
|
|
|
2014-12-19 06:40:26 +03:00
|
|
|
xrdp_fastpath_session_callback(self, RDP_INPUT_SYNCHRONIZE,
|
|
|
|
eventFlags, 0, 0, 0);
|
|
|
|
|
2014-03-07 05:51:35 +04:00
|
|
|
return 0;
|
2014-03-05 01:56:26 +04:00
|
|
|
}
|
2014-03-07 05:51:35 +04:00
|
|
|
|
2014-03-05 01:56:26 +04:00
|
|
|
/*****************************************************************************/
|
|
|
|
/* FASTPATH_INPUT_EVENT_UNICODE */
|
2017-03-12 19:35:00 +03:00
|
|
|
static int
|
2014-03-07 05:51:35 +04:00
|
|
|
xrdp_fastpath_process_EVENT_UNICODE(struct xrdp_fastpath *self,
|
|
|
|
int eventFlags, struct stream *s)
|
2014-03-05 01:56:26 +04:00
|
|
|
{
|
2016-12-10 11:11:28 +03:00
|
|
|
int flags;
|
|
|
|
int code;
|
|
|
|
|
2021-02-04 13:11:54 +03:00
|
|
|
if (!s_check_rem_and_log(s, 2, "Parsing [MS-RDPBCGR] TS_FP_UNICODE_KEYBOARD_EVENT"))
|
2016-12-10 11:11:28 +03:00
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
2016-12-10 12:06:45 +03:00
|
|
|
in_uint16_le(s, code); /* unicode (2 byte) */
|
2021-02-04 13:11:54 +03:00
|
|
|
LOG_DEVEL(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_FP_UNICODE_KEYBOARD_EVENT"
|
|
|
|
"eventHeader.eventFlags 0x%2.2x, eventHeader.eventCode (ignored), "
|
|
|
|
"unicodeCode %d",
|
|
|
|
eventFlags, code);
|
|
|
|
|
2024-06-19 19:20:25 +03:00
|
|
|
flags = get_slowpath_keyboard_event_flags(eventFlags);
|
|
|
|
|
2016-12-10 11:11:28 +03:00
|
|
|
xrdp_fastpath_session_callback(self, RDP_INPUT_UNICODE,
|
|
|
|
code, 0, flags, 0);
|
|
|
|
return 0;
|
2014-03-05 01:56:26 +04:00
|
|
|
}
|
2014-03-07 05:51:35 +04:00
|
|
|
|
2014-03-05 01:56:26 +04:00
|
|
|
/*****************************************************************************/
|
|
|
|
/* FASTPATH_INPUT_EVENT */
|
2017-03-12 19:35:00 +03:00
|
|
|
int
|
2014-12-19 06:40:26 +03:00
|
|
|
xrdp_fastpath_process_input_event(struct xrdp_fastpath *self,
|
|
|
|
struct stream *s)
|
2014-03-05 01:56:26 +04:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int eventHeader;
|
|
|
|
int eventCode;
|
|
|
|
int eventFlags;
|
|
|
|
|
2014-03-09 23:11:36 +04:00
|
|
|
/* process fastpath input events */
|
2014-03-07 05:51:35 +04:00
|
|
|
for (i = 0; i < self->numEvents; i++)
|
|
|
|
{
|
2021-02-04 13:11:54 +03:00
|
|
|
if (!s_check_rem_and_log(s, 1, "Parsing [MS-RDPBCGR] TS_FP_INPUT_EVENT eventHeader"))
|
2014-03-05 08:06:50 +04:00
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
2014-03-05 01:56:26 +04:00
|
|
|
in_uint8(s, eventHeader);
|
|
|
|
|
|
|
|
eventFlags = (eventHeader & 0x1F);
|
|
|
|
eventCode = (eventHeader >> 5);
|
2021-02-04 13:11:54 +03:00
|
|
|
LOG_DEVEL(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_FP_INPUT_EVENT"
|
|
|
|
"eventHeader.eventFlags 0x%2.2x, eventHeader.eventCode 0x%1.1x",
|
|
|
|
eventFlags, eventCode);
|
2014-03-05 01:56:26 +04:00
|
|
|
|
|
|
|
switch (eventCode)
|
2014-03-07 05:51:35 +04:00
|
|
|
{
|
2014-03-05 01:56:26 +04:00
|
|
|
case FASTPATH_INPUT_EVENT_SCANCODE:
|
2014-03-09 23:11:36 +04:00
|
|
|
if (xrdp_fastpath_process_EVENT_SCANCODE(self,
|
2020-11-30 06:29:57 +03:00
|
|
|
eventFlags,
|
|
|
|
s) != 0)
|
2014-03-07 05:51:35 +04:00
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
break;
|
2014-03-05 01:56:26 +04:00
|
|
|
case FASTPATH_INPUT_EVENT_MOUSE:
|
2014-03-09 23:11:36 +04:00
|
|
|
if (xrdp_fastpath_process_EVENT_MOUSE(self,
|
|
|
|
eventFlags,
|
|
|
|
s) != 0)
|
2014-03-07 05:51:35 +04:00
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
break;
|
2014-03-05 01:56:26 +04:00
|
|
|
case FASTPATH_INPUT_EVENT_MOUSEX:
|
2014-03-09 23:11:36 +04:00
|
|
|
if (xrdp_fastpath_process_EVENT_MOUSEX(self,
|
|
|
|
eventFlags,
|
|
|
|
s) != 0)
|
2014-03-07 05:51:35 +04:00
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
break;
|
2014-03-05 01:56:26 +04:00
|
|
|
case FASTPATH_INPUT_EVENT_SYNC:
|
2014-12-19 06:40:26 +03:00
|
|
|
if (xrdp_fastpath_process_EVENT_SYNC(self,
|
2014-03-09 23:11:36 +04:00
|
|
|
eventFlags,
|
|
|
|
s) != 0)
|
2014-03-07 05:51:35 +04:00
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
break;
|
2014-03-05 01:56:26 +04:00
|
|
|
case FASTPATH_INPUT_EVENT_UNICODE:
|
2014-03-09 23:11:36 +04:00
|
|
|
if (xrdp_fastpath_process_EVENT_UNICODE(self,
|
|
|
|
eventFlags,
|
|
|
|
s) != 0)
|
2014-03-07 05:51:35 +04:00
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
break;
|
2014-03-05 01:56:26 +04:00
|
|
|
default:
|
2021-02-04 13:11:54 +03:00
|
|
|
LOG(LOG_LEVEL_ERROR, "xrdp_fastpath_process_input_event: "
|
|
|
|
"unknown eventCode %d", eventCode);
|
2014-03-07 05:51:35 +04:00
|
|
|
break;
|
2014-12-19 06:40:26 +03:00
|
|
|
}
|
2014-03-05 01:56:26 +04:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|